Extremely high frequency multi-point fixed-access wireless communication system
CA 2222001 C · Owner: Nortel Networks Corporation · Inventors: Nowak, Richard Joseph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A subscriber antenna for use in a super high frequency multipoint fixed-access wireless system is provided which has several individually selectable directional antenna facets. The antenna is deployed in a cellular environment. The performances of the signals received by the antenna facets are prioritized, and the best performing facet is selected as a default facet. The antenna is particularly suited for use in a cellular system employing basestations sectorized by polarization to provide basestation diversity.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed November 24, 1997 and granted August 7, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 24, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 24, 2019.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.